Fuel lines

I said I would use it for a return line. I didn't say it was one. lol It sorta is, but it returns fuel vapors to the tank from the charcoal canister. You should be able to directly convert it to a liquid fuel return line. You'll need to make sure the tank is vented. Simplest thing would be to use a vented gas cap. Have you pulled the tank yet? You should, so that you can see exactly where that vapor line goes into the tank and if you have to modify anything to use it for a liquid return.......and also to clean it out good.
I plan on pulling it in the morning when I get off work.